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Rear Derailleur Question

Old 02-09-10, 07:24 PM
  #1  
lunchbox1972
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Rear Derailleur Question

OK,

I'm looking at a couple of derailleurs. One is a XTR, M952 and the other is a XT, a M760 series.

Which is better? My first guess would be the XTR, but the XT is the next generation..

That's assuming that all other things are equal..

This will be going on my Rockhopper with a LX drivetrain, STI shifters.. I just want nice crisp shifts without a bunch of fuss and the LX has been nice, it's just getting long in the tooth and I like to upgrade things.

Thoughts and opinions welcome..


Thanks,

LB

Last edited by lunchbox1972; 02-09-10 at 07:25 PM. Reason: grammer
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Old 02-09-10, 07:53 PM
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https://cgi.ebay.com/SHIMANO-DEORE-XT...item45f0d5c524

This is a awesome choice !!!

And rapid rise to boot .

Last edited by Chris s; 02-09-10 at 08:09 PM.
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Old 02-10-10, 11:08 AM
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Originally Posted by Chris s View Post
https://cgi.ebay.com/SHIMANO-DEORE-XT...item45f0d5c524

This is a awesome choice !!!

And rapid rise to boot .

Newb moment:
What does Rapid rise entail?
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Old 02-10-10, 11:14 AM
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https://www.sheldonbrown.com/gloss_ra-e.html

https://www.sheldonbrown.com/shimano.html#rapidrise

https://www.sheldonbrown.com/gloss_l.html#lownormal
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Old 02-10-10, 11:16 AM
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oh so basically nothing special.
Thanks!
-ill book mark that.
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Old 02-10-10, 11:22 AM
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ahh, Iight, Gotcha.
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Old 02-10-10, 07:10 PM
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Originally Posted by -_RebelRidin'_- View Post
Newb moment:
What does Rapid rise entail?

From what i was told , and yes im a newb !!! but as for rapid rise , the spring is stiffer to prevent chain skip on techy bumpy terrain .... if that is a myth i am truely a newb ..
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Old 02-10-10, 07:15 PM
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I'd go with the XT and thats coming from someone with all XTR.
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Old 02-10-10, 07:26 PM
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XTR.

Rapid Rise -- and Low Normal, same f'n thing -- sucks.

I'm a diehard SRAM guy, but XTR is the only Shim that will ever find its way onto my bikes.
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Old 02-10-10, 09:48 PM
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rapid rise is awful
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Old 02-10-10, 11:18 PM
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xt... esp since you're slapping it on a lx drivetrain, seems a bit out of proportion to put xtr on a lx kit.. ?
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Old 02-11-10, 09:04 AM
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Definitely go with the XT. It's newer and the wider links will be stiffer, making shifts crisper.
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Old 02-11-10, 11:03 AM
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Originally Posted by reptilezs View Post
rapid rise is awful
nonsense.
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Old 02-11-10, 12:50 PM
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Originally Posted by electrik View Post
xt... esp since you're slapping it on a lx drivetrain, seems a bit out of proportion to put xtr on a lx kit.. ?
That's a stupid thing to say. Why not get the better one even if everything else isn't as good?
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Are they talking about spectators feeding the cyclists? You know, like don't feed the bears?
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Old 02-11-10, 01:39 PM
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I always use XT and I used to change the XT every year due to wear on the bikes annual stripdown. But one year I got an XTR. on a special deal. Didn't notice any difference on gear changes but did the following year and the following year. The XTR lasted for 3 years before I had to change it.
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Old 02-11-10, 07:48 PM
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So what is the true meaning of rapid rise V standard ?
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Old 02-11-10, 08:05 PM
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Originally Posted by mzeffex View Post
That's a stupid thing to say. Why not get the better one even if everything else isn't as good?
Oh please, it is not stupid.

I was just trying to say that using an XTR RD on a lower end cassette and chain/shifter doesn't make sense to me, unless of course you are in the progress of updating everything to the very best including the shifters. Why don't we slap some Yumeya gear on some walmart rides while we're at it!

XT is pretty good. LX is good enough. I doubt he can go wrong with XTR either.
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Old 02-11-10, 11:04 PM
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Originally Posted by Chris s View Post
So what is the true meaning of rapid rise V standard ?
'Standard' is high-normal - - in that derailleur spring-tension drops the chain down the stair-step of gears to the highest (smallest) cog. Cable-tension pulls it back up the cogs to lower gears.

Rapid-Rise is low-normal - - spring-tension works the chain up the cogs toward the lowest (largest) cog. Cable tension drops the chain back down the cogs to higher gears.
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Old 02-11-10, 11:18 PM
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Originally Posted by dminor View Post
/snip/snip/ gears.
Do you need reversed shifters then? Since if you release the cable it would go up, so on a normal shifter when the window shoes the small cog (9) you'd be in the big cog (1), and then when you are actually in the small cog it would say 1 and so on.

And Elektrik - you have a point, no harm intended by my previous comment
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Are they talking about spectators feeding the cyclists? You know, like don't feed the bears?
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Old 02-12-10, 01:21 AM
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One of the earlier Sheldon Brown links I posted explains that. Yes, your shifter indicator will be opposite what's happening . . . but who looks at the indicator anyway?
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Old 02-12-10, 03:01 AM
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^I do sometimes lol.
so I know where-abouts I am on my drivetrain, and if so I know how many gears I have left on either side.
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Old 02-16-10, 02:15 PM
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I believe the STI shifters are designed more for rapid rise.. The gear indicator is just a orange pointer with a L at one end and a H at the other.. I don't look at the indicators much.. I know if I'm in the right gear by how it feels.. If I'm in the lowest, then I just push though it to the top of the hill..

As for XTR on an LX drivetrain, does it really matter? You might look at it and have something to think, but as long as the person riding the bike likes it, that's what's important. XTR is overkill for me and I wouldn't even look at it, if a good deal wasn't looking me in the face.. I upgraded the bike from a Deore drivetrain with an LX rear derailleur, so a LX drivetrain with a XT rear would be the same..

I might have to pull the trigger on a rapid rise and give it a try.. It sounds like it would work for me..

Thanks for all the info!
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Old 02-16-10, 06:56 PM
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All the XT products I've used where much easier to setup compared to XTR I think. It took me quite some time to get my XTR M960 front and rear derailleurs setup but once I mastered it, nothing compares to it in the shimano line.

As for rapid rise it takes some time to get used to but I like it over standard shifting.
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Old 02-16-10, 09:14 PM
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XT is the King...XTR is the pansy version for wieners...and people more "well-off" than I who can actually afford it
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Old 02-17-10, 04:04 PM
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Originally Posted by chelboed View Post
XT is the King...XTR is the pansy version for wieners...and people more "well-off" than I who can actually afford it
That's what ebay is for my brotha, otherwise I would be all XT also.
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